instability /ˌɪnstəˈbɪləti/ noun Learner's definition of INSTABILITY
[noncount]
: the quality or state of being unstable(质量或状态的)不稳定(性): such as
a : the state of being likely to change多变性;不稳定性 b : the tendency to change your behavior very quickly or to react to things in an extremely emotional way(行为、情绪等的)不稳定状态,变化无常